Gearing for washing-machines



fModel.)

G. M. WALKER. GEARING FOR WASHING MACHINES, GHURNS, 65c.

Patented Apr. 28,1891.

' in Fig. l.

NITED. STATES GABRIEL MARIAN VALKER,

PATENT I FFIcE.

OF MACON CITY, MISSOURI.

GEARING FOR WASHING-MACHINES, CHURNS, 84,0.

SPECIFICATION forming part of Letters Patent No. 451,091, dated April28, 1891. Application filed October 3, 1890. filerial No. 367,013.(ModeL) To all whom it may concern.-

Be it known that I, GABRIEL MARIAN WALK- ER, a citizen of the UnitedStates, residing in MaconOity, in the county of Macon, State ofMissouri, have invented a new and useful Gearing for Washing-Machines,Ohurns, &c., of which the following is a specification.

My invention relates to improvements in the gearing for operatingwashing-machines and the like in which the continuous rotary motion ofthe driving-shaft in one direction is converted into intermittent rotarymotion in opposite directions of the agitator or other device operated;and it consists in the mechanism hereinafter described, and illustratedin the accompanying drawings, in which- Figure 1 represents a view ofthe entire machine. Fig. 2 represents the form of the slot in each ofthe two standards or side pieces that inolose the machine. Fig. 3represents one of the segment gears with the pivoted arm attached. Fig.4 represents the central boxing, which is attached to the main axle bymeans of a spring.

Similar letters relate to similar parts in all the figures.

In Fig. 1, I J K is the agitator, which rotates in the tub. The rod Iextends up through the table and is fixed in the center of the pinion H.It is continuously in gear with both B and O at all times. Thesegment-gears B and O are not fixed to the axle A, but are free torotate about it. The boxing D is attached to the axle A by means of thespring 0 and partakes at all times of the forward motion of the axle A,which is worked by the crank X.

From the boxing D extend at opposite corners two shoulders m and 11. Asthe boxing rotates, these shoulders catch alternately on the oppositerollers G and L, which are attached, respectively, to the segment-gearsB and O,and thus the motion of D is communicated alternately to B and O,to each one-half the time. Thus alternate motion is communicated to Hand the agitator. Suppose the machine to be started from the positionshown The crank X being turned to the right, the shoulder at will notcatch the roller L, which operates the segment-gear B, because L isfart-her from the axle than the length of the shoulder m but theshouldern catches the farther end of the roller G, which operates thesegment-gear O and brings the roller, and consequently the segment-gear0, around with the motion of the axle, the roller G following the slotB. At the point B this slot diverges farther from the axle than thelength of the shoulder n. The roller G follows the slot in its outwarddivergence and the shoulder n slips off the roller G and moves on, thesegment-gear 0 being thus detached from the axle A. During thishalf-revolution the segment-gear B has been moved backward by itsconnection with the pinion H to a position just opposite to its positionas shown in the drawings. Then the shoul der m in its forward motioncatches the roller L and communicates the motion of the axle to thesegment gear B. The roller L is brought around along a slot in theopposite piece exactly like the slot F until the roller 11, reaches, apoint corresponding to point R, when the shoulder slips off the rollerand passes by, as in the first case.

The mechanism is so adjusted that While either segment-gear is beingmoved forward by the motion from the axle A, communicated through theboxing D, the other segment-gear is being moved back by its connectionwith the side. Thus for each revolution of the crank we obtain a doublerotation of the agitator, one forward and one back.

Fig. 2 represents one of the two similar standards which are fastened attheir feet to the table, which inclose the gearing on opposite sides,and through which the axle A passes. The slot F in these standards is asemicircle up to the pointvR, where the slot diverges farther from theaxle. The radius of this circular slot is shorter than the shoulder m;but the end of the slot, after it diverges farther from the center, isfarther from the center than'the length of the shoulders m and 91.Consequently the shoulders m and n in rotating with the axle catch therollers working in these slots and bring these rollers around with themuntil the slot diverges from the center, when the rollers pass beyondthe reach of the shoulders, which pass on in their rotation.

Fig. 3 represents a back of one of the segment-gears with the pivotedarm P attached.

pinion H on the opposite' moves forward with the axle A.

WVhat I do claim as my invention is Adevice for operatingwashing-machines, churns, and the like, consisting of the driving-shaft,the boxing yieldingly mounted on said shaft and having the shoulders mand at oppositely disposed thereon, the segmentgears loosely mounted onsaid shaft, one at each end of said boxing, an arm P, pivoted on each ofsaid segment-gears, each of said .arms having a projection thereonextending through a slot in its gear and alternately engaging andreleasing the shoulders on the boxing, whereby one of said segment-gearsis caused to rock with the shaft, While the other is loose, and a gearmeshing with both segment-gears, substantially as described.

GABRIEL MARIAN WALKER.

WVitnesses:

RoBT. W. BARRoW, J NO. G. WHITE.

